THERMAL IMAGING DEVICE CALIBRATOR Russian patent published in 2025 - IPC G01J5/48 G01J5/80 

FIELD: thermal imaging devices.

SUBSTANCE: invention can be used in thermal imaging devices for correcting a thermal image associated with compensation for dispersion of characteristics of photosensitive elements of matrix photodetectors (MPD) of infrared radiation. Device comprises an optical defocusing element (ODE) placed between the lens and the MPD with the possibility of its input/output from the optical path using a movement unit and a return mechanism, as well as the ODE retainer equipped with a control unit and a return mechanism of the retainer, wherein the ODE movement unit is configured to accumulate energy. Movement unit comprises a mechanism for moving the ODE, the first input of which is connected to the output of the first switch, the first input of which is connected to the connection point of the first output of the first capacitor and the first output of the first current limiter, the second output of which is the first input of the displacement unit, and the second output of the first capacitor is connected to the second input of the ODE displacement mechanism and is the second input of the displacement unit, the third input of which is the second input of the first switch.

EFFECT: device allows to reduce power consumed by TID in calibration mode, from 58 W to 29.5 W, when control unit is executed without energy accumulation, and to 23 W, when control unit is made with possibility of energy accumulation.

3 cl, 6 dwg